GMAT-Property of Signed Numbers Flashcards
(17 cards)
Properties of Signed Numbers
Remember that zero is neither positive nor negative and to
always consider zero when positive or negative is mentioned in a problem.
positive + positive =
positive
negative + negative =
negative
positive + negative =
if add different, then unknown
unknown
positive – positive =
OR
negative – negative =
(if subtracting the same type, then unknown)
unknown
positive – negative =
If subtracting different, first one decides
positive
negative – positive =
If subtracting different, first one decides
negative
0 + negative =
negative
0 + positive =
positive
positive x positive =
positive
negative x negative =
positive
positive x negative =
negative
0 x positive =
OR
0 x negative =
0
positive/ positive =
positive
negative / negative =
positive
negative / positive =
negative
positive / negative =
negative
